Wire-stretcher



No. 750317. PATENTED JAN. 26, 1904.

I. M. WARNER.

WIRE STRETGHER.

APPLIOATION FILED 0013, 1903.

NO MODEL.

W [T/VESSES: [NVENTOR IBM/04M Hlzomey No. 750,417. Patented January 26,1904.

UNITED STATES PATENT OFFICE.

ISAAC M. WARNER, OF UNION CITY, MICHIGAN, ASSIGNOR TO JOSEPH W.MoCAUSEY, LEO S. PARSONS, ADDISON J. BOYER, AND IVILLIAM ODEN HUGHART,JR, OF GRAND RAPIDS, MICHIGAN.

WlRE-STR ETCHER.

SPECIFIGATIONforming part of Letters Patent No. 750,417, dated. January26, 1904.

Application filed October 3,1903. Serial No- 175,561. (No model.)

T all whom it y b, laterally bent or hooked, so as to form.

Be it known that I, ISAAC M. WARNER, a when the implement is assembled aguide-slot citizen of the United States, residing at Union for thedouble rack-bar or ratch D, said rack- City, in the county of Branch andState of bar also passing through a guide-slot formed 5 Michigan, haveinvented a new and useful by adjacent channels a a" in grip membersWire-Stretcher, of which the following is a A A, the latter slot beingin alinement with the specification. slot formed by the hooks 6. Thesehooks 6 My invention relates to improvements in serve not only asrack-bar, but prevent the wirc-strctchers used in erecting and repairingspreading of the parts B B and accidental dis- 5 5 [o fences and forother purposes, and has for its engagement of the lever E, hereinafterdeobject the production of a simple, durable, and scribed, from the lugson which it is pivoted. powerful implement for exerting tension on Onlugs 6" (shown in Fig. 2) on the inner one or more wires simultaneouslyand for sides of the parts B B is pivoted a lever E, of holding themunder suitable tension until sethe form clearly shown in Fig. 1, saidlever 60 cured to permanent supports. I attain these passing astride therack-bar D and carrying objects by the construction shown in the acpawlse a, one located above and the other be companying drawings, in whichlow the pivot-lugs and each adapted to con- Figure 1 is a perspectiveview of the entire tact with the teeth (Z of rack-bar D. In orimplement;and Fig. 2 isatop plan view thereder to hold the lower pawl in contactwith 5 of, showing parts in section. the teeth on the under side of therack, it is Like letters refer to like parts in both the extended on theopposite side of its pivot, as

figures. at e, to form a counterweight, or it may have In Fig. 1 AA areseparable members, which additional weights attached to the aperturedsupport the other operative parts of the deend 0'. 7

2 5 vice and also serve as means for attaching the At d in the rack-barD is a suitable aperstretcher to the wires to be stretched, either tureby means of which said rack-bar may be by directly clamping or grippingthem upon secured to a stationary support of suflicient a plurality ofwires already in place upon strength to resist the stress of the wires.their supporting-posts or bysecuring them to- The operation is asfollows: Rack-bar D, .75

3 gether by the bolts (4 a, so as to bring the secured to a stationarysupport at the end d, grooves a a into position to form apertures andthe grip members AAand attached parts for the passage of any desirednumber of being moved to the opposite end of said rack, Wires, which maythen be secured for stretchthe ends of the wires to be stretched areseing by any suitable fastening, as at c, this cured to A A or thesegrips clamped from 80 fastening forming no part of my invention.opposite sides upon wires already in place and The members or grips A A(shown broken in the lever E oscillated. At each swing of the 5- Fig. 1)may be long enough to carry a second lever in either direction one ofthe pawls e v tension device at the opposite end, if desired, will serveas a temporary fulcrum, while the for simultaneously stretching a largenumber other travels along the opposite edge of the 5 4' of wires or awide web. rack-bar to a new point of contact, the lugs Secured to eachof the grip members A A b", the frame B B, and wire-grips A A movbycap-screws C or otherwise are the parts ing therewith in a direction toexert tension B B, preferably of mild steel, said parts beon the wire orwires whether lever E be osing suitably formed at one end, as at 6, toparcillated toward or from the wire-grips. 9

tially embrace the uprights to which they are It will be seen that whenthe stretching is respectively secured and at the other end, ascompleted the entire device may be readily dismantled by merely removingthe bolts (0 a and removed from the stretched wires even though thelatter are secured on either sideof the stretcher, as in removing slackfrom Wires or netting already erected.

What I claim as new, and desire to secure by Letters Patent, is

1. In a Wire-stretcher, in combination, a rack-bar adapted to beanchored at one end, a laterally-separable wire-grip slidably embracingsaid rack-bar, and a lever fulcrumed in separable supports on saidwire-grip and having pawls pivoted on opposite sides of its fulcrum,said pawls being adapted to alter.- natel y engage with the teeth ofsaid rack-bar.

2. In a wire-stretcher, in combination, a horizontally-arranged bar,means for securing one end thereof to a stationary support, teeth on theopposite edges of said bar, a separable Wire-grip slidably embracingsaid bar, a lever fulcrumed in supports on said ire-grip, pawls pivotedto said lever above and below said bar, the lower pawlbeingcounterweighted to cause it to engage the lower rack-teeth, wherebyoscillation of said lever will intermittently move said Wire-griprelatively to said toothed bar.

3. In a wire-stretcher, in combination, a separable Wire-grip, arack-guide therein, a lever-support attached thereto, a second rackguideon said lever-support, a lever fulcrumed on said lever-support, andconnections between said lever and said rack for moving the Wire-griprelatively to said rack.

4. In a Wire-stretcher, in combination, a separablewire-grip,laterally-extending, separable lever-supports mounted oncorresponding portions of said grip, alined rack-guides in saidWire-grip and lever-support respectively, a rack-bar with two serratededges adapted to pass through said guides, a double pawl-lever mountedon said lever-support and adapted to move said rack-bar relatively tosaid guides and wire-grip.

5. In a wire-stretcher, the combination of separable Wire-grips, arack-guide therein, lever-supports secured thereto, a rack-guide on saidsupports, pivot-lugs on said supports between said rack-guides, abifurcated lever pivoted on said lugs, a rack-bar serrated on both ofits edges and adapted to pass through said rack-guides and saidbifurcated lever, and gravity-actuated pawls on said lever, adapted tomove said rack-bar relatively to said wiregrips.

In witness whereof I have signed my name to this specification in thepresence of two Witnesses.

ISAAC M. WARNER.

Witnesses:

GEO. STYLES, CLARA H. PAGE.

